$OpenBSD: patch-src_Makefile,v 1.2 2012/08/19 13:30:04 ajacoutot Exp $
--- src/Makefile.orig	Thu Jun  3 08:05:01 2010
+++ src/Makefile	Sun Aug 19 15:28:03 2012
@@ -1,6 +1,7 @@
 include ../Makefile.cfg
-CC=gcc
-CFLAGS=-Wall -Wcast-align -Wshadow -Wstrict-prototypes -g -O2 -DHAVE_$(CRYPTO_TYPE) -I../include -I./include
+CC?=gcc
+CFLAGS ?=
+CFLAGS +=-Wall -Wcast-align -Wshadow -Wstrict-prototypes -DHAVE_$(CRYPTO_TYPE) -I../include -I./include
 LDFLAGS=-lz -lpthread
 
 ifeq ($(CRYPTO_TYPE),OPENSSL)
